Concrete pipe joint



Oct. 4, 1932. B. UKROplNA 1,880,599

CONCRETE PIPE JOINT Filed Jan. 17. 1931 raies-ies oci. 4, 1932 -V158%,599

unirse stares earner veuries Application filed January 17, 1931. SerialNo. 509,373.

rlhis invention relates to improvements in of spaced rods which areadapted to space concrete pipes. a reinforcing cage 16 from the tube 12.

The general object of my invention is to `As shown the reinforcing cage16 includes provide an improved means for reinforcing aplurality ofspaced rings 17 which are a concrete pipe. *Y spaced longitudinallyalong the length of the 5o Another object of the invention is topropipe. Each ofthe rings 17 are provided with vide an improvedreinforcing cage for cona plurality of spaced tongues Y18 Which arecrete pipes which is constructed in a novel stamped from the ring andbent inwardly and manner and possesses unique features which whichleaves apertures 19 in the ring. Posim are a great advantage over thepresenttype tioned between the tongues 18 and the inner 55 ofreinforcing cages. c surface of the rings '17 1 provide longitudifispecific object of the invention is to pro- Ballyy extending rods 20 andto prevent disvide an improved means for reinforcing a placement of therods 20 the ends of the concrete pipe. tongues 18 are bent towards theringsas indifr @ther objects and advantages of this incated at 21 toengage the rings and hold them v60 vention will be apparent from thefollowing in position during assembly. J description taken in connectionwith the ac- The reinforcing cage 16 is preferablyr secompanying drawingwherein: Cured in position by welding the rings 17 to F ig. 1 is aIfragmentary cross section the rods 15. `W hen the inner layer ofconcrete 2o through a concrete pipe embodying the fea- 14 1s moulded onthe tube 12 and the reinforc- 65 tures of my invention. ing cage 16 theconcrete fills the aperture 19 Fig. 2 is a` fragmentary side view of myin the rings 17 as clearly shown in Fig. 1.

improved reinforcing cage partly in secin ltlg.` 3 ShOW a pipe 10awherein a retion. inforcing cage 16a is disposed in the pipe.

Fig 3 is a, fragmentary Cross Section 0f a This cage 16o includes bandsV17d having- 70 Concrete pipe showing a modified form of tongues 18astruck therefrom and having my invention. longitudinally extendingreinforcing mem- Fig. 1 is a fragmentary cross section bers 20a held inplace bythe tongues 18a. tirough a concrete pipe showing another ACOIltIluOuS mpeFfOlbeCl tube 12a iS SI-V p manner of using myreinforcing cage. ranged inside of the cage 16a and the tongues 75 F ig.5 is aI fragmentary cross section 18a are preferably secured to the tube12a.

through a concrete pipe showing another A seco-nd reinforcing cage 166similar` to the modification of my invention, and cage 16a is arrangedinside of the tubev 12a Fig. 6 is a fragmentary longitudinal secand thetongues 18?) are preferably secured tion through the reinforcing cageshown in to the tube Longitudinally extending 80 Fig. 5. rods 15 may besecured to the tube 12a and Referring to the drawing by reference thecage 1Gb as shown in: Fig. 3. y

characters 1 have indicated a concrete pipe 1n connection with the cage16?) it' will be embodying the features of my invention gennoted thatsome of the tongues 186V are bent 85 erally at 10. is shown this pipecomprises inwardly while others are bent outwardly, as

a solid continuous metal tube 12 embedded indicated. This type of ring.when used between an outer layer of concrete 13 and an either inside oroutside of the tube 12a will' inner layer of concrete 14. ll/'elded tothe Space itself from thesurface of the tube and inner surface of thetubelprovide aplurality it may be free from the tube or it .may be 30secured to the tube by welding the ends of the tongues thereto.

In Fig. il I vhave shown the reinforcing cage 16o similar to the cage I6as used to reinforce a concrete pipe without the use of the metal tube12.

In Figs. 5 and 6 I have shown a mcdica- Y 25 the concrete passes throughthe apertures 30 and 3l as clearly shown in F ig. 5.

If further reinforcing is desired, rods 32 similar to the rods 15' shownin Fig.v l may be positioned between the tongues 28 and the innersurface of the tube 25 and they may be positioned between the tongues 29and the outer surface of the tube 25 also if desired.

y'Ihe pipes shown may have suitablebell and spigot ends thereon to makea iuid tight joint whereby a high pressure concrete pipe line for steamor similar high pressure duty is provided.

From the foregoing description it will be apparent that I have providedan improved concrete 'pipe including a novel reinforcing cage which issimple in construction and highly eficient in use. v

Having thus described myv invention, I claim:

l. A concrete pipe, said pipe including a metal tube embedded between anouter layer of concrete and an inner layer of concrete, a reinforcingcage, said cage including a plurality of spaced metal rings havingtongues thereon, some of said tongues being inclined away from theadjacent surface of said tube, and other of said tongues being inclinedYtowards said tube and a plurality of circumferentially spacedlongitudinal rods, said rods being associated withsaid rings.

- 2.A A concrete pipe, said pipe including a metal tube embedded betweenan outer layer ofconcrete and an inner layer of concrete, a reinforcingcage, saidl` cage including a plurality of spaced metal Y rings havingtongues thereon, some of said tongues being inclined away from theadjacent surface of said tube, and other of said tongues being inclinedtowards said tube, a plurality of circumferentially spaced longitudinalrods, said rods being positioned between the adjacent surfaces of saidrings and said tongues, said second mentioned tongues engaging said tubeand some thereof being secured to said tube.

` 8. A concrete pipe, said pipe including a metal tube embedded betweenan outer layer and an inner layerV of concrete, a plurality of BOZIDARJ. UKROPINA.

TMO

